package com.sise.foodplatform.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.sise.foodplatform.service.OssService;
import com.sise.foodplatform.util.ConstantPropertiesUtils;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.InputStream;
import java.util.UUID;

@Service
public class OssServiceImpl implements OssService {


    //上传图片
    @Override
    public String uploadFileImage(MultipartFile file) {
        //填入对应数据
        String endpoint = ConstantPropertiesUtils.END_POINT;
        String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtils.BUCKET_NAME;

        try{

            // 创建OSSClient实例。
            OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

            // 获取上传文件输入流
            InputStream inputStream = file.getInputStream();
            //获取文件名称
            String fileName = file.getOriginalFilename();
            //1、在文件名称里面添加随机唯一的值
            String uuid = UUID.randomUUID().toString().replaceAll("-","");
            fileName = uuid + fileName;

            //2、把文件按照日期进行分类
            //获取当前日期
            String datePath = new DateTime().toString("yyyy/MM/dd");
            //利用fileName创建目录
            fileName = "foodplatform/"+datePath+"/"+fileName;

            // 调用oss方法实现上传
            //第一个参数 Bucket名称
            //第二个参数 上传到oss文件路径和文件名称
            //第三个参数 上传文件输入流
            ossClient.putObject(bucketName, fileName, inputStream);
            // 关闭OSSClient。
            ossClient.shutdown();
            //把上传之后文件路径返回
            //需要把上传到阿里云oss路径手动拼接出来
            String url = "https://"+bucketName+"."+endpoint+"/"+fileName;
            return url;
        }catch (Exception e){
            e.printStackTrace();
            return null;
        }
    }
}
